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Structure of Microsporangium

What is incor...

Question

What is incorrect for generative cell?

A

Floats in cytoplasm of vegetative cell

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B

Spindle-shaped

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C

Having abundant food reserve

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D

Has dense cytoplasm and a nucleus

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Solution

The correct option is C Having abundant food reserve
Generative cell of pollen is spindle in shaped with dense cytoplasm and prominent nucleus. It floats in cyoplasm of vegetative cell. After mitosis, it forms two male gametes.

The vegetative cell is bigger, has abundant food reserve and a large irregularly shaped nucleus.

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Similar questions

Q. Which of the given statements are not true regarding the structure of the pollen grain?
(i) Outer exine is made up of sporopollenin.
(ii) Inner intine is pecto-cellulosic in nature.
(iii) Generative cell is bigger and contains abundant food reserve.
(iv) Vegetative cell is small and floats in the cytoplasm of the generative cell.

Q. Read the given statements.

(i) The outer exine is made up of sporopollenin.
(ii) Inner intine is pecto-cellulosic in nature.
(iii) Generative cell is bigger and contains abundant food reserve.
(iv) Vegetative cell is small and floats in the cytoplasm of the generative cell.

Which of the given statements are not true regarding the structure of pollen grain?

Q. Cells having dense cytoplasm and large nucleus are called ..........

Q. Give reasons.

Meristematic cells have a prominent nucleus and dense cytoplasm but they lack vacuole.

Q. Assertion: Tapetal cells usually possess dense cytoplasm and never more than one nucleus.
Reason: Tapetal cells undergo mitosis which generally involves division of nucleus but cytokinesis does not happen.

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Structure of Microsporangium

Standard XII Biology

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